Lock for socket-shells.



R. A. SCHOENBERG.

LOCK FOR SOCKET LS APPLICATION msn DE r914.

1,172.635Q Patented Feb. 22,1916.

RALPH ABRAHAM SCI-IOENBERG, OF NEW YORK. N. Y.

LOCK FOR SOCKET-QHELLS.

Specification of Letters Patent.

Patented Feb. 22, 1916.

Application filed December 26, 1914. Serial No. 878,988.

To all whom it may concern:

Be it known that I, RALPH A. SOHOEN- BERG. of New York, in the county of New York and State of New York, have invented a new and useful Lock for Socket-Shells, of which the following is a specification.

The main object of my invention is to increase the durability and efficiency of socket shells, whether key or keyless, and particularly with regard to the bayonet lock of such sockets, an' example of the prior art appearing in U. S. Letters Patent to W. H. Perkins No. 781,226 dated January 31, 1905.

' It is the well-nigh universal custom in removing the cap from the body of a bayonet-jointed socket shell, such, for example, as appears in said patent to tip the cap as if it were hinged instead of pulling the cap straight off longitudinally. The result -is that the screw-head of the screw at the rear (as the/BS1191]. is held in the hand) presses against ,.the flange of the cap and also forces the lower edge of the flange against the body in such a way as to seriously bend and disligure'the parts and also to bend or tear off the head of the screw. This is due to the tipping of the cap in removing it, which tipping is practically universal and results in such disarrangement and bending that the arts of the lock become relatively loose orwill not lock at all.

A feature of my invention overcomes these defects and consists in dispensing with the screw and with the attendant necessity of threading of the body portion and providing a stud or pin without a head to prevent relative longitudinal movement'between the cap member and body member of the socket shell when those parts are locked together. Another feature of my invention consists in providing a round edge for a portion of the bayonet slot to prevent cutting into the 7 boss which engages said portion.

Another feature is a boss sloping outwardly in the direction of the crosswise portion of the bayonet slot to provide for easy riding of the flange of the cap up on to said boss.

Another feature consists in an internal.

-of the. studs in place; Other features will be pointed out below.

In the drawings: Figure 1 is an elevation of a keyles s socket shell embodying my invention; F g. 2 is a perspective of. the cap member; Fig. 3 13 an elevation of the body rlpember; Fig. is a section on line 4-4 of 1g. 3; Fig. 5 is an enlarged section on line' 55 of-Fig. 1; Fig. 6 illustrates one form of boss; Fig. 7 is an elevation of the body member adapted for use with a key; Fig. 8 is a section; and Fig. 9 is a broken elevation of another form of cap flange.

In Fig. 1 the socket shell is of the keyless form and includes cap A and body B having a bayonet joint connection the cap having a slot with a portionextending"longitudinally of the device and anotherportion a extendmg sidewise of the longitudinal portion. Body B has a projection or boss I) made by a portion being pressed out as indicated in Figs. 1 and 5. The body B is slit at b to enable said body to be pressed inwardly in the neighborhood of said projection. Body B is also provided with a stud 01' pin b which is made without a head and which has a pressed-out shoulder 12 to engage the outside of a bent-in portion 6 of the body B, the inner portion 6 being riveted in place. In Fig. 4 I show one stud having an internal projection 12 to enter recess 6' and thereby prevent rotation of insulating member 6 The lower portion of the left edge of the. bayonet slot 'is rounded being formed by cutting the flange a at a and bending back that portion of the flange which extended from a? to a so as to form a flap a having the rounded edge a This flap could be bent inwardly instead of outwardly as both forms would have the rounded edge which is highly desirable for the reason that if the edge is made fiat as heretofore it cuts the boss on the body after a time and so renders the device ineflicient because said edge works under the boss making disengagement of theparts difficult.

In Fig. 6 I show a boss B which is rounded in order to provide an outward slope in a direction parallel to the sidewise. exten l) which permits the passage of boss '03 but makes the cap flange d stronger thanif the material were cut away. 4

I have used the expression. boss or projection and it is to be understood that this expression includes any projection, such for example, as a rivet.

What I claim. is:

1. A device of the character described comprising a cap with a bayonet slot and having a portion bent back upon itself to form a rounded edge for a portion of said slot; and a body having a boss to. engage said edge to prevent relative rotation of the cap and body in one, direction.

2. A device of the character described comprising an insulating member; a cap with a bayonet slot; a body having a boss to engage said. slot to prevent relative rotation of the cap and body in one direction and having a stud to engage said slot to prevent relative longitudinal movement of the in the opposite direction and also to prevent relative longitudinal movement of the cap and body, said stud having internal extending means cooperating with said insulatingmember to prevent rotation of the atter.

3. A device of the character described.

to prevent relative longitudinal movement comprising a cap with ,a bayonet. slot; and a body having a headless stud riveted thereto to engage said slot to prevent relative longithe locked position. 5. A device of the character described comprising an insulating member; a cap fwith a bayonet slot; a b y having mean-S to cooperate with said slot to lock the cap and body together, said means having a .45 tudinal movement of the. cap and bodyjin member to engage said insulating member I to prevent rotation thereof.

6. A device ,of the 'character described comprising aninsulating member; a cap with a bayonet slot; a body having a stud. to engage said slot to prevent relative longitudinal movement of the cap and body,sa1d

stud having-an internal-projection toengage said insulating member toprevent r0 tation thereof. I

7. A device, ofthebharacter described comprising a cap, member and a bodym em:

ber having' a bayonet joint connection, one

an edge rounded about an axis substantially parallel to the longitudinal axis of the device and the other of said members having a boss to engage-said edge.

RALPH ABRAHAM- SCHOENBEBR;

Witnesses LieoN STRAUSS, MORTIMER THALHEIMER.

- Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

\ Washington, D. G.

I of said members having a bayonet slot with i 

